Over time, your asphalt will crack if you don't properly maintain it. Most small cracks are of no consequence. However, if they are left unattended, they could grow. In the end, they could become trip hazards and even reduce the structural integrity of the asphalt. This is why it is so important to fix even the smallest asphalt cracks as soon as you notice them. This article explains how to use asphalt patching to repair small defects.
Using A Cold Formula Patch
Using a cold formula asphalt patch is much more convenient for small problems than using a hot formula. The application of hot formula is similar to the asphalt that was originally poured. This is more heavy duty and really only necessary for extremely large patch jobs. Also, you need rare, expensive equipment to use hot formula patch. Most importantly, you need some sort of heating device to keep the asphalt at a constant, hot temperature while you are pouring it. This is why hot formula is really only suitable for large jobs where you are pouring a very big amount of asphalt. Thankfully, if you fix your cracks with a cold formula while they are still small, it is unlikely that it will ever get to that stage. Cold formula is also very convenient because it comes in premixed bottles.
Pouring the Patch
You can basically pour it directly onto the crack, but you do need to do some prep work beforehand. The first thing you need to do is clean the top of the asphalt around the crack. Then, you need to make sure that the crack depth is consistent. So, you will first want to pull any weeds growing out of the crack. Some people think that they need to scrape all the dirt out of the crack. In fact, a little dirt at the bottom of the crack will help fill it up so you don't have to use too much crack filler. Dirt is obviously cheaper than asphalt patch material. In some cases, you can just scrape the dirt until it is even and level. You might also need to buy some construction dirt to fill up the crack. There's always a chance that there are large cavities underneath the crack, and they will require a lot of dirt to fill in.
Once you have the crack fully prepared, you can pour the patch directly into it. You want to pour the patch into the hole until it overflows and starts to run onto the top of the asphalt. It is a good idea to have a small squeegee on hand so you can spread the patch around as soon as it overflows. This will help push down the patch and seal it to the existing asphalt.
This simple patch will reinforce your asphalt and make it look much better.